Author Topic: Turntable/subwoofer blues  (Read 541 times)

Offline Jim Pittsburgh

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Re: Turntable/subwoofer blues
« Reply #15 on: February 21, 2019, 09:30:13 AM »
I hope the sorbene works, but from my own investigation, have found that the most effective remedy was to build a sandbox.  Sorbene feet can work/ help, but only on tt with a fairly even weight distribution.  If the feet are too squished or not squished enough they become ineffective.
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Offline EmperorNorton

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Re: Turntable/subwoofer blues
« Reply #16 on: February 21, 2019, 08:06:21 PM »
And all the boxes are unpacked?  I'm looking forward to hearing some prime Mcintosh gear,

 and I'm frequently in your general neighborhood.....

Hint, hint.....
Technics SL-1350
Sony CA8ES
Yamaha C-2X
Hafler Five Hundred/Sansui AU9500/Heathkit SA-2
Canton CT800s/Vandersteen 2CE/Dahlquist DQ-10

Offline MacGeek

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Re: Turntable/subwoofer blues
« Reply #17 on: February 22, 2019, 07:30:52 AM »
And all the boxes are unpacked?  I'm looking forward to hearing some prime Mcintosh gear,

 and I'm frequently in your general neighborhood....


The boxes are mostly unpacked and the gear operational.  I have some tweaking to do, especially taming a significant plateau between 31 and 50 hz, but that's part of the fun and preferred over remodelling.

Stop in almost anytime.
Mac stuff, Sony HDR-F1HD AM/FM/HD tuner, Denon DRS 810 cassette, Denon CDR-W1500 CD recorder, Music Hall MMF-9 w/B&O MMC2, Tandberg 10X

Offline rikshot

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Re: Turntable/subwoofer blues
« Reply #18 on: July 05, 2019, 01:17:51 AM »
Try choking off  !/2 of your bass reflex port to change "mechanics" of the bass----Sorbothane is "dense" & is for heavy shock---Try mattress foam, styrofoam or "beach" sand which is rounded grains (not crushed sand that compacts)---dust cover is a reverberation chamber, & if it's bass radiation---turn your sub a little left or right off center---I've never been able to operate a turntable if a speaker is pointed at it---especially if you're tracking under a gram---& the cover causes reverberation----You really need physical separation---or a radiation shield----like a piece of whatever you got---like piece of plywood---or cookie sheet-L-OLOL

Offline MacGeek

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Re: Turntable/subwoofer blues
« Reply #19 on: July 05, 2019, 09:15:42 AM »
Try choking off  !/2 of your bass reflex port to change "mechanics" of the bass----Sorbothane is "dense" & is for heavy shock---Try mattress foam, styrofoam or "beach" sand which is rounded grains (not crushed sand that compacts)---dust cover is a reverberation chamber, & if it's bass radiation---turn your sub a little left or right off center---I've never been able to operate a turntable if a speaker is pointed at it---especially if you're tracking under a gram---& the cover causes reverberation----You really need physical separation---or a radiation shield----like a piece of whatever you got---like piece of plywood---or cookie sheet-L-OLOL

Thanks for the tips. Things are mostly under control.  No separate sub to deal with; the speakers are full range.  The turntable is on a wall mounted shelf.  I always play it with the cover up (although it doesn't matter when streaming).  I have tried the speaker ports open and plugged and use them whichever way is better.  I measure the room and use 1/3 octave eq to smooth frequency response.

Through all of my moves I have found it usually takes about three iterations of tweaking to get things where I like them; I have a couple to go (tweak, listen, tweak, listen, etc.)  After that, then I leave things alone. 
Mac stuff, Sony HDR-F1HD AM/FM/HD tuner, Denon DRS 810 cassette, Denon CDR-W1500 CD recorder, Music Hall MMF-9 w/B&O MMC2, Tandberg 10X

Online Sir Thrift-a-Lot

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Re: Turntable/subwoofer blues
« Reply #20 on: July 05, 2019, 09:26:40 AM »
And all the boxes are unpacked?  I'm looking forward to hearing some prime Mcintosh gear,

 and I'm frequently in your general neighborhood.....

Hint, hint.....

I have never heard a Mac.   This must be addressed.

Offline MacGeek

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Re: Turntable/subwoofer blues
« Reply #21 on: July 05, 2019, 10:41:03 AM »
Let me know when you'll be in the South Hills (Rt 51 corridor).
Mac stuff, Sony HDR-F1HD AM/FM/HD tuner, Denon DRS 810 cassette, Denon CDR-W1500 CD recorder, Music Hall MMF-9 w/B&O MMC2, Tandberg 10X

Offline scorpio333

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Re: Turntable/subwoofer blues
« Reply #22 on: July 05, 2019, 02:33:48 PM »
I have never heard a Mac.   This must be addressed.

When I get caught looking at McIntosh porn my wife tells me I should google, "how to sell a kidney". The meters do me in every time.

Online Sir Thrift-a-Lot

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Re: Turntable/subwoofer blues
« Reply #23 on: July 05, 2019, 03:56:23 PM »
Let me know when you'll be in the South Hills (Rt 51 corridor).


I was just in the Rt 51 corridor a couple hours ago, but it was for work.   I did relieve one of your GWs of some pretty nice vinyl, I'll post a pic in another thread later.